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A Fly on the Ceiling (Step-Into-Reading, Step 4)
A Fly on the Ceiling - Step-Into-Reading, Step 4 Author:Julie Glass, Richard Walz (Illustrator) Recognized as the father of analytic geometry, Rene Descartes was a French mathematician and philosopher. Kids will love this funny and very accessible tale -- based on one of math's greatest myths -- about the man who popularized the Cartesion system of coordinates.